#include<bits/stdc++.h>
using namespace std;
int n,a[100100],ans,b[100100];
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        b[a[i]]++;
        ans=max(ans,b[a[i]]);
    }
    cout<<ans;
    return 0;
}
